Wrench.



J. J. PARSONS.

WRENGH. APPLICATION FILED JANJ, 1909.

931,640. Patented Aug. 17, 1909.

arbor/nu Cir JOSEYH J. PARSONS, OF MOUNT IDA, ARKANSAS.

WRENCH.

Specification 01" Letters Patent.

Patented Aug. 17, 1909.

Application filed January 7, 1909. Serial No. 471,197.

To all whom it may concern:

Be it known that I, JOSEPH J. Pansoz-zs, citizen of the United States,residing at Mount- .lda, in the county of Montgomery and State ofArkansas, have invented certain new and useful improvements in Wrenches,of which the following is a specification.

The purpose of the present invention is to provide a tool of the wrenchtype which may be quickly adjusted to the work and made secure in thelocated position of the movable part, so as to prevent possibleslipping.

The invention has relation more particularly to means for securing themovable jaw of a wrench and to release said jaw to admit of easy andquick adjustment thereof when adapting the tool to the size of thearticle to be held between the jaws when the tool is in operation.

F or a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction and the meansfor effecting the result reference is to be had to th followingdescription and accompanying drawings, in which:

Figure 1 is a side view of a wrench constructed in accordance with andembodying the essential features of the invention; Fig. 9 is atransverse section on the line 2-2 of Fig. 1; Fig. 3 is a cross sectionon the line 3-3 of Fig. 1; and, Fig. 1 is a cross section on the line 4-1 of Fig. 1.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The tool comprises a shank 1, a fixed jaw at one end of the shank and ahandle 3 at the opposite end thereof. The lower side of the shank 1 istoothed, indicated atd, so as to cooperate with a lock device to securethe movable jaw when set to the required position. The nature andformation of the teeth 4; may be such as commonly provided in tools ofthis type.

The movable jaw 5 is slidable upon the shank 1 and is provided in a sidewith a recess 6 to admit of the lock device having free movement, andalso l eing placed in position or removed. when required. The jaw 5cooperates with the fixed jaw 2 in the manner well understood in toolsof this variety.

The lock device consists of a block 7 having journals 8 and 9 atopposite ends, one of the j ournals being extended and deflectedlaterally to form a finger-piece 10. The

block 7 is toothed at one edge, as indicated at 11, the teeth being ofsuch form as to match the teeth to cooperate therewith and secure thejaw 5 in the located position. A recess 12 is formed in an end wall ofthe recess (3 toreceive the journal 8, and the opposite wall of saidrecess is formed with a notch or opening 13, which is closed by means ofa block 1 1- of wedge form, said block being held in place by means of apin or screw 15 passed through openings formed in the block 1d and inthe walls of the recess 13. The inner end of the block 14 is madeconcave to lit around the journal 9. When the block 1 1 is removed thelock device may be readily placed in position or removed from the jaw 5.hen placing the lock device in position the journal 8 is fitted in therecess 12 and the journal 9 is passed through the notch or opening 13after which the block 1% is placed in position to close said opening andis made secure by the pin or screw 15. The lock device is adapted toturn freely about the journals 8 and 9 and is operatable by means of thefinger-piece 10. When the jaw 5 is released by moving the lock device todisengage its toothed portion 11 from the toothed portion t of the shank1, as indicated in Fig. 3, the said jaw may be moved easily upon theshank 1 by a sliding action and when in the required position the saidjaw is secured by moving the lock device to engage the teeth 11 of theblock 7 with the teeth 1, as indicated mostclearly in Fig. 2.

The construction is such as to admit of the lock device being easilyplaced in position and quickly removed, as occasion may require, withtheresult that repairs may be cheaply made and the parts quickly assembled,thereby enabling the tool to be manufactured economically, so as to beplaced upon the market at a comparatively low cost. It is also observedthat the construction is such as to admit of the several parts beingcast or drop-forged.

Having thus described the invention what is claimed as new is:

1. In a tool of the character described the combination of a shank, ajaw movable upon the shank and having a recess in a side thereof, andhaving openings in the walls of said recess, one of the'openings beingoutwardly flared and extended through a side of the jaw, a lock devicecomprising a block having journals at opposite ends and having one ofthe journals extended and laterally deflected to form a finger-piece,the block fitting Within the recess and its journals mounted in theopenings formed in the Walls thereof, a Wedge shaped block closing saidflared opening, and a pin for securing said block in position.

2. A Wrench comprising a shank having a jaw and having a side toothed inits length, a movable jaw mounted upon the shank and provided in a sideWith a recess, and having openings in the Walls of the recess, one ofthe o Jenin 's bein outwardl flared and extended through a side of theblock, a lock device fitted in said recess andcomprlsing a block havingan edge portion toothed to match the teeth of the shank and havingjournals at its ends, one of the journals being extended and deflectedlaterally to form a finger-piece, said journals being mounted in theopenings formed in the Walls of said recess, a Wedge shaped blockclosing the flared opening, and a pin for securing the Wedge shapedblock in position.

In testimony whereof I affix my signature in presence of two Witnesses.

JOSEPH J. PARSONS. [Ls] \Vitnesses V HARRY J. RADCLIFFE,

JOHN D. MILLER.

